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Bài viết của Trần Bảo Ngọc

The Kidneys and Osmoregulatory Organs

Although the kidneys are the major osmoregulatory organ, the skin and lungs also play a role in the process. Water and electrolytes are lost through sweat glands in the skin, which helps moisturize and cool the skin surface, while the lungs expel a small amount ...

Tác giả: Trần Bảo Ngọc viết 15:20 ngày 25/05/2018 chỉnh sửa

Induced Emf and Magnetic Flux

The apparatus used by Faraday to demonstrate that magnetic fields can create currents is illustrated in [link]. When the switch is closed, a magnetic field is produced in the coil on the top part of the iron ring and transmitted to the coil on the ...

Tác giả: Trần Bảo Ngọc viết 15:19 ngày 25/05/2018 chỉnh sửa

Theoretical Perspectives on Society

Warren Buffett’s ideas about taxation and spending habits of the very wealthy are controversial, particularly since they raise questions about America’s embedded system of class ...

Tác giả: Trần Bảo Ngọc viết 15:19 ngày 25/05/2018 chỉnh sửa

Density

Which weighs more, a ton of feathers or a ton of bricks? This old riddle plays with the distinction between mass and density. A ton is a ton, of course; but bricks have much greater density than feathers, and so we are tempted to think of them as heavier. (See ...

Tác giả: Trần Bảo Ngọc viết 15:19 ngày 25/05/2018 chỉnh sửa

Fermentation

In aerobic respiration, the final electron acceptor is an oxygen molecule, O 2 . If aerobic respiration occurs, then ATP will be produced using the energy of the high-energy electrons carried by NADH or FADH 2 to the electron transport chain. If aerobic ...

Tác giả: Trần Bảo Ngọc viết 15:19 ngày 25/05/2018 chỉnh sửa

Evidence of Evolution

The evidence for evolution is compelling and extensive. Looking at every level of organization in living systems, biologists see the signature of past and present evolution. Darwin dedicated a large portion of his book, On the Origin of Species , identifying ...

Tác giả: Trần Bảo Ngọc viết 15:18 ngày 25/05/2018 chỉnh sửa

Projectile Motion

Projectile motion is the motion of an object thrown or projected into the air, subject to only the acceleration of gravity. The object is called a projectile , and its path is called its trajectory . The motion of falling objects, as covered in ...

Tác giả: Trần Bảo Ngọc viết 15:18 ngày 25/05/2018 chỉnh sửa

Smooth Muscle

Smooth muscle (so-named because the cells do not have striations) is present in the walls of hollow organs like the urinary bladder, uterus, stomach, intestines, and in the walls of passageways, such as the arteries and veins of the circulatory system, and the ...

Tác giả: Trần Bảo Ngọc viết 15:18 ngày 25/05/2018 chỉnh sửa

Electrical Safety: Systems and Devices

Electricity has two hazards. A thermal hazard occurs when there is electrical overheating. A shock hazard occurs when electric current passes through a person. Both hazards have already been discussed. Here we will concentrate on systems and devices ...

Tác giả: Trần Bảo Ngọc viết 15:17 ngày 25/05/2018 chỉnh sửa

Functions of the Integumentary System

The skin and accessory structures perform a variety of essential functions, such as protecting the body from invasion by microorganisms, chemicals, and other environmental factors; preventing dehydration; acting as a sensory organ; modulating body temperature ...

Tác giả: Trần Bảo Ngọc viết 15:17 ngày 25/05/2018 chỉnh sửa